U.S. patent application number 16/705200 was filed with the patent office on 2020-07-02 for speaker.
The applicant listed for this patent is AAC Technologies Pte. Ltd.. Invention is credited to Chengming Cao.
Application Number | 20200213745 16/705200 |
Document ID | / |
Family ID | 67863088 |
Filed Date | 2020-07-02 |
United States Patent
Application |
20200213745 |
Kind Code |
A1 |
Cao; Chengming |
July 2, 2020 |
SPEAKER
Abstract
A speaker includes a vibration structure, a magnetic circuit
structure, and a housing having a cavity receiving the vibration
structure and the magnetic circuit, the vibration structure
comprises: a diaphragm fixed to the housing and a voice coil
driving the diaphragm to vibrate and sound, the diaphragm comprises
a dome located at an intermediate position and a suspension
connected to the dome, the suspension comprises a first fixing
portion fixed to the housing, a second fixing portion connected to
the dome, and a wrinkle portion that connects the first fixing
portion with the second fixing portion, the dome is fixed at a side
of the second fixing portion facing towards the voice coil, and
comprises an edge portion connected to the voice coil, and the edge
portion comprises a recessed portion formed by recessing from a
surface connected to the voice coil along a direction away from the
voice coil.
Inventors: |
Cao; Chengming; (Shenzhen,
CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
AAC Technologies Pte. Ltd. |
Singapore city |
|
SG |
|
|
Family ID: |
67863088 |
Appl. No.: |
16/705200 |
Filed: |
December 5, 2019 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H04R 2209/041 20130101;
H04R 9/025 20130101; H04R 9/06 20130101 |
International
Class: |
H04R 9/02 20060101
H04R009/02; H04R 9/06 20060101 H04R009/06 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 29, 2018 |
CN |
201822268446.9 |
Claims
1. A speaker, comprising: a housing having a receiving cavity; a
vibration structure comprises a diaphragm fixed to the housing and
a voice coil configured to drive the diaphragm to vibrate and
sound; and a magnetic circuit structure, wherein the vibration
structure and the magnetic circuit structure are assembled in the
receiving cavity, the diaphragm comprises a dome located at an
intermediate position and a suspension connected to the dome, and
the suspension comprises a first fixing portion fixed to the
housing, a second fixing portion connected to the dome, and a
wrinkle portion that connects the first fixing portion with the
second fixing portion, wherein the dome is fixed at a side of the
second fixing portion facing towards the voice coil, and comprises
an edge portion connected to the voice coil, and the edge portion
comprises a recessed portion formed by recessing from a surface
connected to the voice coil along a direction facing away from the
voice coil.
2. The speaker as described in claim 1, wherein the housing
comprises a holder and an upper cover, the holder being provided
with an open cavity and the upper cover covering a top of the open
cavity.
3. The speaker as described in claim 2, wherein the magnetic
circuit structure comprises a yoke, the yoke comprises a substrate
and a magnetic side plate, the magnetic side plate is arranged at a
peripheral side of the substrate and protrudes from a plate surface
of the substrate, and the magnetic side plate goes deep into the
open cavity when the yoke is assembled on the holder.
4. The speaker as described in claim 3, wherein the magnetic
circuit structure further comprises a magnet and a washer, the
magnet being assembled on the substrate of the yoke, and the washer
being assembled at a side of the magnet facing away from the
substrate.
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the field of sounder
technologies, and in particular, to a speaker.
BACKGROUND
[0002] A speaker is an acoustic component commonly used in an
electronic device, and is an electric-acoustic converter. The
existing speaker generally includes a housing having a cavity, a
vibration structure and a magnetic circuit structure. The vibration
structure and the magnetic circuit structure are arranged in the
cavity of the housing, and divides the cavity into a front cavity
and a rear cavity. The vibration structure includes a voice coil
and a diaphragm. The diaphragm includes a dome and a suspension.
The dome and the voice coil are generally bonded by gluing. Because
the amount of glue is not easily controlled, it is prone to have a
problem of excessive glue affecting the pure tone yield.
BRIEF DESCRIPTION OF DRAWINGS
[0003] Many aspects of the exemplary embodiment can be better
understood with reference to the following drawings. The components
in the drawings are not necessarily drawn to scale, the emphasis
instead being placed upon clearly illustrating the principles of
the present disclosure. Moreover, in the drawings, like reference
numerals designate corresponding parts throughout the several
views.
[0004] FIG. 1 is a structural schematic view of a speaker according
to the present disclosure;
[0005] FIG. 2 is an exploded structural schematic view of the
speaker shown in FIG. 1;
[0006] FIG. 3 is a structural top view of the speaker shown in FIG.
1;
[0007] FIG. 4 is a cross-sectional structural schematic view taken
in a direction A-A shown in FIG. 3;
[0008] FIG. 5 is an enlarged structural schematic view of a region
B shown in FIG. 4;
[0009] FIG. 6 is a structural schematic view of a suspension shown
in FIG. 2; and
[0010] FIG. 7 is a structural schematic view of a yoke shown in
FIG. 2;
[0011] In the drawings, the reference signs represent: 1, housing;
11, holder; 12, upper cover; 2, vibration structure; 21, diaphragm;
211, dome; 2111, recessed portion; 212, suspension; 2121, first
fixing portion; 2122, second fixing portion; 2123, wrinkle portion;
22, voice coil; 3, magnetic circuit structure; 31, yoke; 311,
substrate; 312, magnetic conductive side plate; 32, magnet; 33,
washer.
DESCRIPTION OF EMBODIMENTS
[0012] The present disclosure will be further illustrated with
reference to the accompanying drawings and the embodiments.
[0013] As shown in FIGS. 1-7, an embodiment of the present
disclosure provides a speaker. The speaker includes: a housing 1
having a receiving cavity, a vibration structure 2, and a magnetic
circuit structure 3. The vibration structure 2 and the magnetic
circuit structure 3 are assembled in the receiving cavity. The
vibration structure 2 includes: a diaphragm 21 fixed to the housing
1, and a voice coil 22 which drives the diaphragm 21 to vibrate and
sound. The diaphragm 21 includes a dome 211 located at an
intermediate position, and a suspension 212 connected to the dome.
The suspension 212 includes a first fixing portion 2121 fixed to
the housing 1, a second fixing portion 2122 connected to the dome
211, and a wrinkle portion 2123 that connects the first fixing
portion 2121 with the second fixing portion 2122. The dome 211 is
fixed at a side of the second fixing portion 2122 facing towards
the voice coil 22, and includes an edge portion connected to the
voice coil 22. The edge portion includes a recessed portion 2111
formed by recessing from a surface connected to the voice coil 22
along a direction away from the voice coil 22.
[0014] In the speaker according to this embodiment, the edge
portion of the dome 211 connected to the voice coil 22 includes a
recessed portion 2111, so that a gap is provided as a glue storage
space between the dome 211 and an inner wall of the voice coil 22.
After a glue is glued between the dome 211 and the voice coil 22,
the glue is stored in the gap, and will not overflow to a lower
surface of the dome 211 and the inner wall of the voice coil 22,
thereby improving the pure tone yield of the speaker.
[0015] As shown in FIGS. 1-7, in an embodiment, the housing 1
includes: a holder 11 and an upper cover 12. The holder 11 has a
rectangular frame shape, and is provided with an open cavity. The
upper cover 12 covers the top of the open cavity. The magnetic
circuit structure 3 includes a yoke 31, a magnet 32, and a washer
33. The yoke 31 includes a substrate 311 and a magnetic conductive
side plate 312. The substrate 311 is a rectangular plate. The
magnetic conductive side plate 312 is arranged at a peripheral side
of the substrate 311 and protrudes from a plate surface of the
substrate 311. When the yoke 31 is assembled on the holder 11, the
magnetic side plate 312 goes deep into the through cavity, and a
gap is formed between the magnetic conductive side plate 312 and
the inner wall of the holder 11. The magnet 32 is assembled on the
substrate 311 of the yoke 31. The magnetic conductive side plate
312 of the yoke 31 surrounds the magnet 32, and a gap is formed
between the magnetic conductive side plate 312 and the magnet 32.
The washer 33 is assembled at a side of the magnet 32 facing away
from the substrate 311.
[0016] The above are only embodiments of the present disclosure.
Here, it should be noted that those skilled in the art can make
modifications without departing from the inventive concept of the
present disclosure, but these shall fall into the protection scope
of the present disclosure.
* * * * *